The film presents how the human body recognizes and becomes aware of its surroundings. The various information pathways to the brain such as sight, sound, smell, taste and touch are explored in a accurate but simple manner via human impression and cartoon characters!
Frank Baxter
as Himself (as Dr. Frank C. Baxter)
Hadley Cantrell
as Himself - Princeton University Psychologist (as Professor Hadley Cantrell)
Edwin Max
as Bill
Wilder Penfield
as Himself - Director: Montreal Neurological Institute (as Dr. Wilder Penfield)
Peter Brown
as Aristotle's student (uncredited)
Karl Swenson
as Hal - the Cameraman (uncredited)
